mirror of https://github.com/postgres/postgres
26 lines
938 B
Plaintext
26 lines
938 B
Plaintext
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WARNING
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-------
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This implementation of full text indexing is very slow and inefficient. It is
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STRONGLY recommended that you switch to using contrib/tsearch which offers these
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features:
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Advantages
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----------
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* Actively developed and improved
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* Tight integration with OpenFTS (openfts.sourceforge.net)
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* Orders of magnitude faster (eg. 300 times faster for two keyword search)
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* No extra tables or multi-way joins required
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* Select syntax allows easy 'and'ing, 'or'ing and 'not'ing of keywords
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* Built-in stemmer with customisable dictionaries (ie. searching for 'jellies' will find 'jelly')
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* Stop words automatically ignored
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* Supports non-C locales
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Disadvantages
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-------------
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* Only indexes full words - substring searches on words won't work.
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eg. Searching for 'burg' won't find 'burger'
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Due to the deficiencies in this module, it is quite likely that it will be removed from the standard PostgreSQL distribution in the future.
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